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Privacy Preserving Communication in MANETs

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3 Author(s)
Heesook Choi ; Pennsylvania State Univ., State College ; McDaniel, P. ; La Porta, T.F.

Mobile ad hoc networks often support sensitive applications. These applications may require that users' identity, location, and correspondents be kept secret. This is a challenge in a MANET because of the cooperative nature of the network and broadcast nature of the communication media. In this paper, we propose a privacy preserving communication system (PPCS) which provides a comprehensive solution to anonymize communication end- points, keep the location and identifier of a node unlinkable, and mask the existence of communication flows. We present an analysis of the security of PPCS against passive internal attackers, provide a qualitative discussion on its strength against external attackers, and characterize its performance trade-offs. The simulation results demonstrate that PPCS has only 3% lower packet delivery ratio than existing multi-path routing protocols, while effectively providing privacy service in MANETs.

Published in:

Sensor, Mesh and Ad Hoc Communications and Networks, 2007. SECON '07. 4th Annual IEEE Communications Society Conference on

Date of Conference:

18-21 June 2007